On Tue, 6 Dec 2022 07:16:13 -0500 IraM <iram...@yahoo.com> wrote: > Sent from my iPhone > > > On Dec 5, 2022, at 12:39, Dylan Baros <dcba...@utexas.edu> wrote: > > > > > > > > > > How do you figure out what settings need to be used to correctly configure > > a DPDK mempool for your application? > > I went to rough a similar exercise when I was playing around with packet > ordering example. > > Here’s a rough formula I came up with. > Comments are welcomed > > Total pool size = Sum of the following numbers > -RX queue size x number of ports > -TX queue size x number of ports > -Size of ring x number of rings > -MAX_pkt_burstsize x number of threads since each does a read of that size > > >
Some drivers like Broadcom bnxt require multiple mbufs per rx descriptor. And if you use jumbo frames and scatter/gather it gets a little more complex.
